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Effects of temperature and ph on the water exchange through erythrocyte membranes nmr studies


, : Effects of temperature and ph on the water exchange through erythrocyte membranes nmr studies. Journal of Membrane Biology 62(1-2): 1-6

The temperature and pH dependence of water exchange was studied on isolated human erythrocytes suspended in isotonic buffered solutions. At pH 7.4 a break in the Arrhenius plot of water exchange time at around 26.degree. C was found. The mean value of the apparent activation energy of the water exchange time at temperatures higher than that of the discontinuity was 5.7 kcal/mol (.+-. 0.4); at lower temperatures the values of the apparent activation energy were below 1.4 kcal/mol. The pH dependence of water exchange time of isolated erythrocytes revealed a marked increase of the water exchange time values in the acid range of pH; a much smaller variation of the same parameter occurs between pH 7.0 and 8.0. These findings could be correlated with other processes involving erythrocyte membranes that showed similar pH and temperature dependence and were considered to indicate state transitions in the membranes. The temperature and pH effects on water diffusion indicate that conformational changes and cooperative effects are implicated in the mechanism of this transport process.

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Lowry, Dorothy C.; Lerner, I. Michael; Taylor, Lewis W., 1956: Intra-flock genetic merit under floor and cage managements. In an experiment extending over 4 years, means and variabilities of egg production traits of pullets housed in floor pens were compared with means and variabilities of their full sisters housed in individual cages. Floor pullets were found usually...

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Nobuhara M., 1988: The in vivo antitumor effect and the mechanism of human natural tumor necrosis factor. Purified human natural tumor necrosis factor (n-TNF) was prepared from the culture medium of stimulating human leukemic B cell line (BALL-1) with Sendai virus. In vivo studies revealed that n-TNF suppressed the tumor growth of three murine and sev...

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Conn, K. L.; Abbasi, P. A.; Lin, Y.; Lazarovits, G., 2003: Reduction of potato scab with volatile fatty acids and acidified liquid swine manure in soil amendments. Canadian Journal of Plant Pathology 25(4): 422, December